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Cybersecurity Engineer (Expert)

Pueo Business Solutions LLC McLean, VA

McLean, VA

Today

$148k - $168k/yr Full time Application Security Ato Evidence Container Security

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Job Description

Pueo Business Solutions LLC is seeking a Senior Cybersecurity Engineer to design and secure air-gapped Kubernetes and OpenShift platforms deployed in classified enclaves. The role focuses on CI/CD security automation, federal compliance artifacts for authorization, Zero Trust implementation, and incident response operations in SCIF environments.

Location

McLean, VA (onsite)

Compensation

USD 147,742 - 167,888 per year

Summary

The Cybersecurity Engineer (Expert) will support disconnected container ecosystems by implementing automated security controls, conducting platform assessments for mixed-sensitivity workloads, and producing evidence aligned to federal processes. Responsibilities include integrating NIST 800-53 controls, DISA STIGs, and RMF/ATO requirements, while enabling identity-driven access and operational monitoring in isolated environments.

Key Responsibilities

Design and support implementation of multi-tenant Kubernetes/OpenShift clusters in disconnected enclaves.
Manage container registry governance, including image signing, SBOM/provenance, vulnerability gating, and offline patching.
Implement admission control using OPA Gatekeeper and Kyverno, along with RBAC for multi-tenancy in classified environments.
Support CI/CD pipeline design that integrates SAST, DAST, IaC scanning, and automated compliance checks.
Generate RMF/ATO evidence using OSCAL mappings and integrate with eMASS.
Enforce promotion gates requiring signed/provenanced artifacts and passing STIG checks.
Tailor NIST 800-53 controls for containerized systems using shared responsibility matrices.
Apply Kubernetes/Docker/OpenShift DISA STIGs and track and manage exceptions.
Implement continuous monitoring using CONMON dashboards supported by on-prem tools such as Prometheus, Falco, and auditd.
Reduce ATO lead times through automation and evidence generation.
Implement Zero Trust in Kubernetes using mTLS, service mesh components (SPIFFE/SPIRE), and identity propagation across build and runtime layers.
Manage offline PKI operations with short-lived certificates and air-gapped roots.
Design east-west segmentation and cross-domain artifact transfer with tamper-evident controls.
Lead or contribute to security initiatives requiring cross-functional coordination.
Architect secure, scalable containerized platforms for mixed-sensitivity workloads in SCIFs.
Map CI/CD artifacts to RMF/ATO controls and accelerate authorization timelines through automation.
Tailor and reconcile federal compliance requirements across NIST, CNSS, and program-specific directives.
Operate and troubleshoot Kubernetes clusters in air-gapped enclaves with minimal external support.
Detect, investigate, and respond to security incidents while maintaining data integrity in classified environments.
Coordinate between development, security, and operations teams to implement secure, compliant practices.
Design and execute disaster recovery and resilience strategies across isolated sites.

Required Qualifications

Active/current Top Secret security clearance with SCI eligibility.
Ability to obtain and maintain a CI poly.
Bachelor’s degree in related field and 12 years of experience, or an additional 4 years of experience in lieu of a completed degree for a total of 16+ years.
One of the following IAT III certifications in compliance with DoD 8570.01-M and DoD Directive 8140 (e.g., CASP+ CE, CCNP Security, CISA, CISSP (or Associate), GCED, GCIH, CCSP).
Extensive experience working with Kubernetes, OpenShift, RKE2, and container registry management in air-gapped and classified environments.
Deep understanding of CI/CD pipeline architectures in disconnected networks.
Expertise in federal cybersecurity frameworks, including NIST 800-53, DISA STIGs, RMF, and ATO processes.
Familiarity with security testing tools including SAST, DAST, IAST, IaC and automated compliance validation.
Proven experience enforcing Zero Trust, PKI management, and network segmentation in a classified environment.
Strong ability to map pipeline artifacts to RMF/ATO controls and support security operations during incidents.
Extensive experience in cybersecurity design and architecture.

Technologies

Kubernetes, OpenShift, RKE2
Container registry management
OPA Gatekeeper, Kyverno
CI/CD pipelines
SAST, DAST, IaC
OSCAL, eMASS
NIST 800-53, DISA STIGs, RMF, ATO
CONMON, Prometheus, Falco, auditd
mTLS, SPIFFE, SPIRE
PKI
SPIFFE/SPIRE service mesh
Docker
CNSS

Desired Qualifications

Active Top Secret security clearance with SCI eligibility and current CI poly.
Relevant certifications such as CKA, CKS, GSEC, RHCSA/RHCE, or CASE.
Some experience leading security projects and initiatives.
Team-player with collaboration experience in mixed technical teams.

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